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GSC Operations Concept

&

Sentinels Collaborative Ground Segment

Pier Bargellini

GSC Mission Management & Ground Segment DevelopmentEO Ground Segment Department, European Space Agency (ESRIN, Frascati)

Outline

• Operations Phase Overview

• Operations Strategy

• GSC Core Ground Segment Architecture

• GSC Core Ground Segment Status

• Sentinels Collaborative Ground Segment Concept

• Preliminary review of Collaboration Proposals

• Collaborative Ground Segment Roadmap

Some GMES Core and several Downstream services, and additional EU Agencies applications are today in ‘Pre-Operations’

GSC ground segment Coordinated Data System version 2 providing Data Access via ESA and GCMs is in ‘Pre-Operations’ since 2008

Sentinel Space and Ground Segment development is on track for launch of A units in 2013 and 2014

Operations concept drafted in 2008 and continuously refined since

Several programmatic aspects still under consolidation:

• Sentinel ownership, GSC operations funding, GMES Services long-term funding, Governance

GMES Pre‐Operations Status

Operations Phase Definition

The ‘GSC Operations Concept’ refers to the period from mid 2014 onwards by when 'operational budgets' from the EC are expected to be available

An initial ramp-up phase is envisaged marking the transition towards the full operational capability:

• progressive integration of each Sentinel spacecraft in the GSC overall system

• a gradual evolution in the performance in the data throughput and timeliness

in the services to users

in the availability of the overall system

The amount and type of funding available will determine the pace of the ramp-up from a ‘Launch-Commissioning’ configuration to the Full Operational configuration

Sentinel Data Policy

= full and open access to Sentinel data to all users

•Principles approved by ESA member states in 2009•EC presently drafting a GMES data and information policy

Operations Strategy

GMES Space Component operations concept

•Presented to ESA member states and EC in 2010 •Technical Implementation is proceeding

The Sentinel HLOP

•1st draft presented to ESA member states in May 2011 •Consolidated version to PBEO for approval in 2013

Sentinel Products List

•Presented as part of operations concept to ESA member states and EC in 2010

User/mission requirements

Main objectives of the Sentinel operations strategyProvide data to GMES services and to Member States for national use Ensure systematic and routine operational activities:• with a high level of automation• with pre-defined operations to the maximum extent possible

Operating today

Ground Segment Architecture

Core and Collaborative Ground Segment

The GMES Space Component (GSC) Operations Concept relies on a GSC Ground Segment consisting of:

a GSC Core Ground Segment, with GSC-funded Functions and Elements, providing :

• the primary access to Sentinel Missions data as well as

• the coordinating access functions to Contributing Missions data

a GSC (Sentinel) Collaborative Ground Segment, with non GSC-fundedFunctions and Elements, providing:

• a supplementary access to Sentinel Missions data, i.e. either through specific data acquisition services, or specific data products

• the frame for international cooperation

Core Ground Segment

The GSC Core Ground Segment will ensure coherent EO data supply (end-to-end data access management, monitoring and control) for GMES use

In particular the Core GS will:

• Focus on systematic product generation

• Provide online data distribution

• Maintain a well-defined product list

• Include a data access integration layer, comprising multi-mission planning, user registration, download & data delivery for Sentinels and GCMs

• Apply the Sentinel Data Policy

Core Ground Segment Functions

Main Facilities include:• Sentinel Flight Operations Segment (FOS)

• Sentinel Data Acquisition and Near Real Time Product Generation

• Sentinel Processing and Archiving Centres (PACs)

• Sentinel Mission Performance Centres (MPCs)

• Sentinel Precise Orbit Determination Service (POD)

• Sentinel Payload Data Management Centre (PDMC)

Coordinated Data Access Systems for Sentinel and GCMs include:• GSC Gap and EO data requirements analysis tools and systems

• GSC Multi-Mission Mission Planning and scheduling

• GSC User Services (e.g. Registration, Management)

• GSC End to End Monitoring and Control (including Reporting)

Core Ground Stations Network

Core Ground Stations:

• Matera

• Maspalomas

• Svalbard

• Alaska

MaspalomasMaspalomas

MateraMatera

Svalbard Svalbard

AlaskaAlaska

Data Core NRT & Offline Processing Centers

Infoterra UK

Indra Madrid

CLS Toulouse

Eumetsat DarmstadtDLR Oberpfaffenhofen

ACRI Nice

NRT Matera

Near Real Time Processing Centre AArchive and Offline Processing Centre

NRT Maspalomas

NRT Svalbard

Mission Performance Centers

CoordinatingCoordinating CenterCenter

Expert Support Expert Support LaboratoriesLaboratories

Cal/ValCal/Val

- 3 separated ITTs

- 3 MPC main contracts:MPC-S1, MPC-S2, MPC-S3

- Various sub-contracts are expected for

ESL, Cal/Val, science expertise

GMES Ground Network

Circulation Network

Dissemination Network

Internet

Firewall & CPE

Other services

CDN, Cloud

(when needed)

Dissemination network highly scalable: 10 Gbps

Generic UserGeneric User

Defined, privileged

User: eg Core Service

or Coll. GS Element

Defined, privileged

User: eg Core Service

or Coll. GS Element

Core GS Future Evolution

Specific GS development activities envisaged within the ESA GSC Segment-3 programme proposal

• Adaptation of Ground Segment, in particular for Sentinel-5 Precursor

• Implementing the Sentinel data interfaces for national use

Continuous Integration of new Contributing Missions

Continuous Integration of new Collaborative Ground Segment Functions

Accommodate GMES Core Services evolution

• New core data products

• Enhanced data dissemination functions

Access to data through collaborative agreements allows further valorising the development of operational ground segment services complementing the GSC PDGS core services

The collaboration provides a frame for specialised solutions to further enhance the Sentinels missions exploitation in the area of:

1.Sentinels data acquisition and Quasi/Near Real Time production

2.Complementary collaborative data products and algorithms definition

3.GSC data product dissemination and access (e.g. mirror sites)

4.Development of innovative tools and applications

5.Complementary support to Calibration/Validation activities

The collaboration will rely on the definition of formal agreements as well as the technical definition of dedicated operational interfaces

Sentinel Collaborative Ground Segment concept

Collaborative Ground Segment process

Implementation of the collaborative GS is based on 3 main steps:

1.Definition of process and collection of collaboration proposals• Started in the framework of the GMES Operations Consultation Group

(GOCG) – a Group with MS representatives (ASI) derived from the Ground Segment Coordination Body

• Requirements collection: questionnaire released in 2011

• Enable ESA to make a preliminary assessment of the planned initiatives

• Inputs from most MS received and under consolidation

2.Proposal feasibility analysis• Execution of simulation scenarios. Identification of potential conflicts

• Proposal refinement with collaborative partner

3.Formalisation of collaboration• Define and sign the formal agreement and document the operational interfaces

• Integrate, verify and validate the derived implementation

1 – Sentinel collaborative stationsPreliminary analysis of replies to questionnaire

a. ScopeCollaborative stations complementing the Core X-band and Ka-band station network, aiming at (mainly) providing quasi real time services for Sentinel-1 and Sentinel-2

b. Received requests overviewX-band stations, including related observation needs for S1:Sodankylä (S1, S2, S5P), Azores (S1), Maspalomas (S1, S2), Matera (S1), Neustrelitz (S1, S2, S3), Brest (S1), Kerguelen (S1), La Reunion (S1), French Guyana (S1), Kiruna (S1, S2), Tromsö (S1)

In addition: Canadian stations (not identified yet), EMSA CleanSeaNet stations (today Matera, Brest, Azores, Grimstadt, Tromsö, Svalbard)

Ka-band stations, including related observation needs for S1: Oberpfaffenhofen/Weilheim (S1, S2), Neustrelitz (S1, S2), Harwell (S1, S2)

X-band stations outside MS’s territories: Malindi, Inuvik / Chetumal / O’Higgins, station in South America Pacific coast, Cordoba, Gabon

1 – Sentinel collaborative stations Preliminary analysis of replies to questionnaire (cont’d)

c. Identified ESA support

Implementation of observation needs (mainly for Sentinel-1), satellite acquisition/downlink planning

Availability of Core GS developed elements for reuse, e.g. front end processor (to be procured by coll. partner), operational processor license and associated maintenance

d. Open issues

The request for local stations in cooperating countries impacts the overall system resources: e.g. additional S1 observation needs, additional downlink requirements and constraints

Some requests for downlink of S3 (and S5P) data: today not part of the foreseen scenario

Some requests for receiving recorded data: accepted if in overlap to the Core Stations

Some stations ask for involvement in the emergency / crisis planning, i.e. emergency data transmitted to collaborative stations: accepted if in overlap to the Core Stations

2 ‐

Collaborative Data ProductsPreliminary analysis of replies to questionnaire

a. Scope

Definition, specification, generation of data products in complement to the set of products provided by the Core ground segment

Generated either from collaborative station direct acquisition or from standard core products

b. Received requests overview

Very wide range of products for Sentinel-1, -2 and -3 planned to be generated with all types of timeliness: quasi real-time, near real time, off-line few days, off-line with higher time delay (e.g. large scale products incl. mosaic, regional / global products, etc.)

Different types of planned collaborative products in several thematic domains, e.g.:• Products in complement and of the same level of core products, e.g. Sentinel-3 level 2

• Products beyond the standard core product level with specific attributes, e.g. Sentinel-1 orthorectified

• Value-adding information products for end-users, e.g. maritime surveillance (e.g. ship detection), crisis mapping, subsidence maps/risks, land thematic information services

• Large-scale national, continental, regional or global products, e.g. biophysical maps / crop field plots, forest monitoring, support to climate change monitoring, soil moisture, snow / glacier monitoring

• Level 4 products, e.g. multi-mission (beyond the Sentinels)

2 ‐

Collaborative Data ProductsPreliminary analysis of replies to questionnaire (cont’d)


Dedicated access to core data products, in particular of large volumes of Sentinel-1/-2 data

Verification of user documentation related to collaborative products: such support is foreseen to be limited to product level similar to core products

d. Open issues

Volume of data to be routinely provided

Network design, implementation

Network operations costs

3 – GSC Data Products Dissemination and AccessPreliminary analysis of replies to questionnaire

a. ScopeParticular regional or thematic data access nodes and mechanisms, including redistribution services of Sentinels core products systematically received from the Core Ground Segment, deployment of additional pick-up points (e.g. mirror sites)

b. Received requests overview

Set up of mirror sites for redistribution of Sentinel-1, -2 and -3 at National level: 3 requests received

Set up of mirror sites for redistribution of Sentinel-1, -2 and -3 at regional level (e.g. Alps, Africa, part of South America): 3 requests received

Dissemination of Sentinal-5P products: 2 requests received

Few requests for data (re)distribution in NRT, with products generated from collaborative stations (X or Ka-band)

1 request for using cloud computing infrastructure

3 – GSC Data Products Dissemination and AccessPreliminary analysis of replies to questionnaire (cont’d)


Dedicated access to large volume of Sentinel core data products for national or regional coverage

Set up of technical interface to mirror site

Potential provision of tools to collaborative partners for user management / interface to GSC catalogues

d. Open points

Volume of data to be routinely provided

Technical interfaces with core PDGS (e.g. catalogues, security aspects)

1 request for redistribution of GCM (GMES Contributing Missions) data: not foreseen in the collaborative GS framework which concerns the Sentinels only

4 – Development of Innovative Tools and ApplicationsPreliminary analysis of replies to questionnaire

a. ScopeDevelopment of particular innovative tools or ‘Apps’ by and for the general public

b. Received requests overviewVarious types of proposals received, related to particular coverage (national, regional, etc.) e.g.:

• Geo data webserver

• EO image library

• Open Geospatial Consortium compliant services e.g. Web Mapping Service (WMS), Web Feature Service (WFS), Web Processing Service (WPS)

• Web GIS

• Mobile Apps

• Information systems for National / Municipal services and for assistance and official use in EU directives (Water Framework, Maritime Strategy Framework, Habitats, etc.)

4 – Development of Innovative Tools and ApplicationsPreliminary analysis of replies to questionnaire (cont’d)

c. Identified ESA supportAdvertisement of collaborative tools / applications established in terms of WEB portal

links, coupled interfaces for information of interest to GSC user community, during workshops, etc.

d. Open pointsNone identified so far

5 – Complementary support to Cal/VAL activities

a. Scope

Based on specific Cal-Val calls, engage world-class expertise and activities, through mutual benefit collaboration, that complements the implementation of the Sentinel calibration and validation activities

Provide access to Cal-Val infrastructure and data

Cooperation to be formalised through a collaborative ground segment agreement. No exchange of funds are foreseen.

b. Received requestsNote: This category was not part of the original ESA questionnaire, it has been identified after

having issued it

Some interest has however been expressed in a proposal for participating to Sentinel-3 SLSTR cal/val activities


ESA has recently issued a Call for establishment of a complementary Sentinel-3 Validation, aiming at selecting cal-val support teams. Closure for proposals: end 2012

Similar calls are being considered for Sentinel-1 and -2

Dedicated access to core data products

Coordinate activities

d. Open pointsNone identified so far

5 – Complementary support to Cal/VAL activities (cont’d)

Partner Status of discussions / inputs

Summary of planned activities (based on presentations, reply to questionnaire, etc)

ItalyASI, (GOCG member)

On-going- Participation to GOCG

meetings- Bilateral meetings:

- ESRIN, 11 May 2011

- Inputs via ASI presentation at GOCG-2 and GOCG-5

Preliminary inputs

Acquisitions:•Sentinel-1 observations, covering: Italy, Mediterranean sea, NorthAfrica, Kenya, Somalia, Sudan, Eritrea, Ethiopia, West Indian Ocean, Indonesia and surrounding seas.

•Sentinel-2: national interest for Italy and Mediterranean Sea

Data Acquisition•Potential stations in addition to Matera: Malindi (“regional station for GMES Africa”), Cordoba (“regional station for South America”).

Planned activities: oil spill monitoring, terrain motion monitoring, ship detection, etc.

Note: synergies with Cosmo-Skymed and SAOCOM identified

Status of discussion with National collaborative ground segment partners

Collaborative Ground Segment ‐Summary of ESA potential support

Potential ESA support to Collaborative GS addresses several items e.g.:• Instruments and satellite tasking (to provide adequate observations and provide

support to collaborative stations)

• Availability of Core GS developed elements for reuse: front end processor, operational processors and associated maintenance

• Development of specialised interfaces

• Dedicated access links to core products

• Access to cal/val infrastructure and data

• Verification of user documentation related to collaborative products

• ESA hosting of collaborative processors

• Interface to mirror sites

• Advertisement of collaborative activities (e.g. products) on the GSC Portals

• Use of ESA developed toolbox to host collaborative product processing algorithm

The extent of the support depends on the financial envelope allocated to ESA GSC Segment-3 by MSs at upcoming ESA Ministerial

Potential CollGS support to Core GS addresses several items e.g.:

• Mirror sites for re-distribution of core products

• Provide access to ESA of cal/val infrastructure and data

• Data repatriation from collaborative stations

• For the redistribution of core products, provide ESA with user information including data access profile (e.g. user registration, traceability of data use)

Collaborative GS Framework

Potential support from Collaborative Partners to ESA

Collaborative Ground Segment Road Map

• Collection of Requirements: in progress, close to completion

• Analysis and simulation of feasibility and cost to the Core GS: End 2012Proposals iterative refinement started

• Draft formal agreements templates: 2nd half 2012Confirmation of ownership approach and data policy: required ASAP

• Amendment of the Operations Concept: Q3/4 2012

• Update to the Sentinel High Level Operations Plan (HLOP): Q1 2013

• Confirmation of operational funding for GSC overall and collaborative interfaces in particular (GSC Segment-3): November 2012 (C-MIN)

Thank you for your attention

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